L'ichnoligie, discipline r�actualis�e d�s 1971 par le dr L�on Pales, offre un int�ressant �clairage � l'�tude globale de la cavit�. L'�tude des empreintes et traces laiss�es par les animaux et les hommes lors de leurs diff�rentes incursions �tablit le cadre des circulations et leur succession ou intricatiions. Elle pose aussi la question de la structuration de la cavit� et de l' appr�hension de l'espace par les hommes. Les traces animales observ�es jusqu' � pr�sent sont le fait de canid�s, d'ours mais aussi d'un bouquetin. Elles nous renseignent sur les esp�ces potentiellemtn pr�sentes au cours des temps pout les outs et les canid�s et soul�vent le probl�me de la pr�sence des caprid�s au plus profond de la cavit�. Le travail conduit husqu'ici offre d�h� une moisson importante de documents, mais pour des raisons conservatoires, il a �t� restreint par l'acc�s � certaines portions de sols; compl�t�e par les am�nagements futurs et confont�e aux autres disciplines, l'�tude ichnologique apportera sa sontribution � la compr�hension de l'ensemble du site. Ichnology, a discipline applied in art cave's context since 1971 by Dr L�on Pales sheds interesting light on the overall investigation of this cave. The study of imprints, marks or traces left by animals and human beings during their various incursions establishes a framework for the various types of circulation and their sequence of intrication. It also raises the question of the structures of the cave and the manner in which space was conceived by the human beings. The animal traces observed so far were made by Canidae and bears, but also by an ibex. They provide information on the species which could have been present over time as far as the bears and Canidae are concerned and raise the problem of the presence of Capridae in the deepest section of the cave. Work carried out so far has already yielded an important amount of evidence, but for conservation reasons it has been limited by means of the future installations and confronted with other disciplines, the ichnological study will contribute to our understanding of the site as a whole.